CN104682714B - Direct current transducer - Google Patents
Direct current transducer Download PDFInfo
- Publication number
- CN104682714B CN104682714B CN201510111182.4A CN201510111182A CN104682714B CN 104682714 B CN104682714 B CN 104682714B CN 201510111182 A CN201510111182 A CN 201510111182A CN 104682714 B CN104682714 B CN 104682714B
- Authority
- CN
- China
- Prior art keywords
- diode
- switch device
- transformer
- direct current
- ideal transformer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M3/00—Conversion of dc power input into dc power output
- H02M3/22—Conversion of dc power input into dc power output with intermediate conversion into ac
- H02M3/24—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters
- H02M3/28—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac
- H02M3/325—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal
- H02M3/335—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
- H02M3/33569—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only having several active switching elements
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/10—Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion e.g. power factor correction or reduction of losses in power supplies or efficient standby modes
Abstract
The present invention provides a kind of direct current transducer, which adopts staggeredly normal shock flyback DC converting circuit, including direct-current input power supplying, input capacitance, the first and second ideal transformers, the first and second magnetizing inductances for adhering to the first and second real transformers separately, the first and second switching devices, the first and second parasitic leakage inductances, resonant capacitance, first to fourth diode and the output capacitance that adhere to the first and second real transformers separately；Wherein, the first ideal transformer, the first magnetizing inductance, first switch device and the first parasitic leakage inductance be located this all the way and the parasitic leakage inductance of secondary ideal transformer, the second magnetizing inductance, second switch device and second be located this all the way respectively as main road and bypass；Main road and bypass crisscross parallel, and share a resonant capacitance.The present invention disclosure satisfy that large-scale DC input voitage, realize that HVDC is exported, with higher conversion efficiency and power.
Description
Technical field
The present invention relates to DC boosting technical field, in particular it relates to a kind of direct current transducer, particularly suitable
In photovoltaic system.
Background technology
Direct current is converted to alternating current, and the voltage and frequency of electrical network matching by inverter.In the prior art, it is a kind of inverse
It is a point two-stage to become device：The first order brings the voltage up, and the second level carries out inversion, produces the alternating current for needing.Wherein, the first order is usual
The voltage of about 30V is raised to into the voltage of 480V, needs high performance change-over circuit to realize high conversion efficiency.It is inverse for photovoltaic
Become device, in addition it is also necessary to large-scale DC input voitage can be met.
The content of the invention
The technical problem to be solved is to provide a kind of direct current transducer, disclosure satisfy that large-scale direct current input
Voltage, realizes that HVDC is exported, with higher conversion efficiency and power.
To solve above-mentioned technical problem, the present invention provides a kind of direct current transducer, and which adopts staggeredly normal shock-flyback direct current to turn
Circuit is changed, the DC converting circuit includes：Direct-current input power supplying, input capacitance, the first ideal transformer, secondary ideal transformation
Device, the first magnetizing inductance of the first real transformer, the second magnetizing inductance of the second real transformer, first switch device,
Two switching devices, the first parasitic leakage inductance of the first real transformer, the second parasitic leakage inductance of the second real transformer, resonance electricity
Appearance, the first diode, the second diode, the 3rd diode, the 4th diode and output capacitance；
Wherein, first ideal transformer, first magnetizing inductance, the first switch device and described first are posted
Raw leakage inductance be located this all the way and the secondary ideal transformer, second magnetizing inductance, the second switch device and
This of described second parasitic leakage inductance place is all the way respectively as main road and bypass；The main road and the bypass crisscross parallel, and
Share a resonant capacitance；
The DC converting circuit has the first operation mode and the second operation mode；Under first operation mode,
The first switch break-over of device, the second switch device shut-off, the main road are operated in positive energizing mode, the bypass work
In flyback mode；The main road is charged to the resonant capacitance by first ideal transformer, and first diode is led
It is logical, the second diode shut-off；The second switch device of the bypass is off state, is stored in described second and encourages
Secondary transmission output of the energy above magnetoelectricity sense by the secondary ideal transformer, the 4th diode of the bypass
It is open-minded, the 3rd diode shut-off, while the energy on the resonant capacitance pass to also by the 4th diode it is negative
Carry；
Under second operation mode, the first switch device shut-off, the second switch break-over of device, the master
Road is operated in flyback mode, and the bypass is operated in positive energizing mode；The bypass passes through the secondary ideal transformer, to described
Resonant capacitance charges, the 3rd diode current flow, the 4th diode shut-off；The first switch device of the main road
State is off, the energy being stored in above first magnetizing inductance is transmitted by the secondary of first ideal transformer
Output, second diode of the main road are open-minded, the first diode shut-off, while the energy on the resonant capacitance
The load is passed to also by second diode.
Alternatively, the first switch device and the second switch device are metal-oxide-semiconductor, triode or IGBT pipe.
Alternatively, the division of the main road and the bypass is interchangeable.
Alternatively, the described first parasitic leakage inductance and the second parasitic leakage inductance in the DC converting circuit as resonance
Inductance is present, or is served as with separate inductor.
Alternatively, the DC input voitage of 30V can be increased to the direct current transducer high pressure of 480V.
Alternatively, the direct current transducer is applied to photovoltaic inverting system.
Compared with prior art, the present invention has advantages below：
The direct current transducer of the present invention goes for photovoltaic system, disclosure satisfy that large-scale DC voltage input, real
Existing HVDC output, it may have higher conversion efficiency and power.
Description of the drawings
The above and other features of the present invention, property and advantage are by by retouching with reference to the accompanying drawings and examples
State and become readily apparent from, wherein：
Schematic diagrames of the Fig. 1 for the staggeredly normal shock-flyback DC converting circuit of the direct current transducer of one embodiment of the invention；
Fig. 2 a are the staggeredly normal shock-flyback DC converting circuit of the direct current transducer of one embodiment of the invention in the first work
Make the practical circuit diagram under mode；
Fig. 2 b are the staggeredly normal shock-flyback DC converting circuit of the direct current transducer of one embodiment of the invention in the second work
Make the practical circuit diagram under mode；
Work electricity of the Fig. 3 for the staggeredly normal shock-flyback DC converting circuit of the direct current transducer of one embodiment of the invention
Pressure, current-vs-time oscillogram.
Specific embodiment
With reference to specific embodiments and the drawings, the invention will be further described, elaborates in the following description more
Details in order to fully understand the present invention, but the present invention obviously can come real different from this alternate manner for describing with various
Apply, those skilled in the art in the case of without prejudice to intension of the present invention can make similar popularization, drill according to practical situations
Unravel silk, therefore should not be limited the scope of the invention with the content of this specific embodiment.
Schematic diagrames of the Fig. 1 for the staggeredly normal shock-flyback DC converting circuit of the direct current transducer of one embodiment of the invention.
It should be noted that this and follow-up others accompanying drawing are only as an example, should not be in this, as being actually subjected to the present invention
The protection domain asked is construed as limiting.As shown in figure 1, the direct current transducer is applicable to photovoltaic inverting system, use staggeredly
Normal shock-flyback (Interleave Forward-Flyback) DC converting circuit.The DC converting circuit mainly includes：Direct current
Input power 201, input capacitance 202, first ideal transformer 203, secondary ideal transformer 303, the first real transformer
First magnetizing inductance 204, the second magnetizing inductance 304 of the second real transformer, first switch device 205, second switch device
305th, the second parasitic leakage inductance 306, resonant capacitance of the parasitic leakage inductance 206 of the first of the first real transformer, the second real transformer
212nd, the first diode 213, the second diode 214, the 3rd diode 313, the 4th diode 314 and output capacitance 215.
Wherein, above-mentioned first switch device 205 and second switch device 305 be specifically as follows metal-oxide-semiconductor, triode or
The switching-type devices such as IGBT pipes.Above-mentioned first parasitic leakage inductance 206 and the second parasitic leakage inductance 306 can be made in DC converting circuit
Exist for resonant inductance, or served as with separate inductor.In addition, it is assumed that the first ideal transformer 203, the first magnetizing inductance 204,
First switch device 205 and the first parasitic leakage inductance 206 be located this all the way based on road, then secondary ideal transformer 303, second
The parasitic leakage inductance 306 of magnetizing inductance 304, second switch device 305 and second be located this all the way supplemented by road.Certainly, above-mentioned main road
It is interchangeable with the division of bypass.Main road and bypass crisscross parallel are with hoisting power, and share a resonant capacitance 212.It is main
The Interleaved control of road and bypass can reduce the voltage ripple on resonant capacitance 212.
In the present embodiment, the DC converting circuit can have the first operation mode and the second operation mode.Fig. 2 a are
Staggeredly normal shock-flyback DC converting circuit the reality at the first mode of operation of the direct current transducer of one embodiment of the invention
Circuit diagram.As shown in Figure 2 a, at the first mode of operation, first switch device 205 is turned on, and second switch device 305 is turned off, main
Road is operated in positive energizing mode, and bypass is operated in flyback mode.Main road is filled to resonant capacitance 212 by the first ideal transformer 203
Electricity, the first diode 213 are turned on, and the second diode 214 is turned off.The second switch device 305 of bypass is off state, storage
Energy on the second magnetizing inductance 304 is exported by the secondary transmission of secondary ideal transformer 303, the four or two pole of bypass
Pipe 314 is open-minded, and the 3rd diode 313 is turned off, while the energy on resonant capacitance 212 is passed to also by the 4th diode 314
Load.The circuit being shown in dash-dot lines in fig. 2 a represents the part for being off state at the first mode of operation.
During this period of time, resonant capacitance 212 is charged by the first diode 213, is discharged by the 4th diode 314.
So discharge in charging, energy transmission less on resonant capacitance 212 can be obtained, so as to obtain less voltage ripple.
The voltage at 212 two ends of resonance potential is Vin*n, then the voltage of 303 vice-side winding of secondary ideal transformer is Vout-Vin*n, then
The voltage of 303 primary side winding of secondary ideal transformer is Vout/n-Vin, and the voltage of second switch device 305 is Vout/n, together
Sample has less voltage stress, can adopt the switching tube of more low-voltage-grade, such that it is able to improving the performance of switching tube
Obtain more preferable conversion efficiency.
Fig. 2 b are the staggeredly normal shock-flyback DC converting circuit of the direct current transducer of one embodiment of the invention in the second work
Make the practical circuit diagram under mode.As shown in Figure 2 b, the analysis of the second operation mode and the first operation mode is similar to, simply main,
Bypass has exchanged working method.Specifically, at the second mode of operation, first switch device 205 is turned off, second switch
Device 305 is turned on, and main road is operated in flyback mode, and bypass is operated in positive energizing mode.Bypass passes through secondary ideal transformer 303,
Charge to resonant capacitance 212, the 3rd diode 313 is turned on, the 4th diode 314 is turned off.At the first switch device 205 of main road
In off state, the energy being stored in above the first magnetizing inductance 204 transmits defeated by the secondary of the first ideal transformer 203
Go out, the second diode 214 of main road is open-minded, and the first diode 213 is turned off, while the energy on resonant capacitance 212 is also by
Two diodes 214 pass to load.Similarly, the circuit being shown in dash-dot lines in figure 2b is represented at the second mode of operation
It is off the part of state.
Work electricity of the Fig. 3 for the staggeredly normal shock-flyback DC converting circuit of the direct current transducer of one embodiment of the invention
Pressure, current-vs-time oscillogram.As best shown in figures 3 a and 3b, metal-oxide-semiconductor is in first switch device 205 and second switch device 305
In the case of, Fig. 3 a show the control voltage of first switch device 205 (solid line) and second switch device 305 (dotted line) (i.e.
Grid voltage) signal waveform, Fig. 3 b show first switch device 205 (solid line) and second switch device 305 (dotted line)
The signal waveform of source-drain voltage.
As shown in figs. 3 c and 3d, they respectively illustrate main road primary current and bypass primary current and main road secondary electricity
The oscillogram of stream and bypass secondary current, wherein solid line waveform still for main road, dotted line waveform still for bypass.Finally, as schemed
Shown in 3e, the voltage oscillogram of resonant capacitance 212 is it illustrates.As can be seen that using a shared resonant capacitance of the present invention
212 and main road and bypass crisscross parallel control technological means, can play reduce resonant capacitance 212 on voltage ripple work
With.
In sum, direct current transducer of the invention goes for photovoltaic system, disclosure satisfy that large-scale direct current
Pressure input, realizes that HVDC is exported, it may have higher conversion efficiency and power.
Although the present invention is disclosed as above with preferred embodiment, which is not for limiting the present invention, any this area skill
Art personnel without departing from the spirit and scope of the present invention, can make possible variation and modification.Therefore, it is every without departing from
The content of technical solution of the present invention, any modification above example made according to the technical spirit of the present invention, equivalent variations
And modification, each fall within the protection domain defined by the claims in the present invention.
Claims (6)
1. a kind of direct current transducer, which adopts staggeredly normal shock-flyback DC converting circuit, the DC converting circuit to include：Directly
Stream input power (201), input capacitance (202), the first ideal transformer (203), secondary ideal transformer (303), the first reality
First magnetizing inductance (204) of border transformer, second magnetizing inductance (304) of the second real transformer, first switch device
(205), second switch device (305), the first parasitic leakage inductance (206) of the first real transformer, the of the second real transformer
Two parasitic leakage inductances (306), resonant capacitance (212), the first diode (213), the second diode (214), the 3rd diode
(313), the 4th diode (314) and output capacitance (215)；
Wherein, first ideal transformer (203), first magnetizing inductance (204), the first switch device (205)
Be located with the described first parasitic leakage inductance (206) this all the way and the secondary ideal transformer (303), second excitation electricity
Sense (304), the second switch device (305) and it is described second parasitism leakage inductance (306) be located this all the way respectively as main road
And bypass；The main road and the bypass crisscross parallel, and share a resonant capacitance (212)；
The DC converting circuit has the first operation mode and the second operation mode；It is under first operation mode, described
First switch device (205) is turned on, second switch device (305) shut-off, and the main road is operated in positive energizing mode, described auxiliary
Road is operated in flyback mode；The main road is charged to the resonant capacitance (212) by first ideal transformer (203),
First diode (213) conducting, the second diode (214) shut-off；The second switch device of the bypass
(305) state is off, second magnetizing inductance (304) energy above is stored in by the secondary ideal transformer
(303) secondary transmission output, the 4th diode (314) of the bypass are open-minded, and the 3rd diode (313) is closed
It is disconnected, while the energy on the resonant capacitance (212) passes to load also by the 4th diode (314)；
Under second operation mode, first switch device (205) shut-off, second switch device (305) conducting,
The main road is operated in flyback mode, and the bypass is operated in positive energizing mode；The bypass passes through the secondary ideal transformer
(303), charge to the resonant capacitance (212), the 3rd diode (313) conducting, the 4th diode (314) are closed
It is disconnected；The first switch device (205) of the main road is off state, is stored on first magnetizing inductance (204)
Secondary transmission output of the energy in face by first ideal transformer (203), second diode of the main road
(214) it is open-minded, first diode (213) shut-off, while the energy on the resonant capacitance (212) is also by described second
Diode (214) passes to the load；
Wherein described first ideal transformer (203) and the secondary ideal transformer (303) crisscross parallel；Described first is preferable
The former limit of transformer (203) is parallel with first magnetizing inductance (204), is in series with the first switch device (205)；It is described
The secondary of the first ideal transformer (203) is connected with one end of the described first parasitic leakage inductance (206), the secondary ideal transformer
(303) former limit is parallel with second magnetizing inductance (304), is in series with the second switch device (305)；Second reason
Think that the secondary of transformer (303) is connected with one end of the described second parasitic leakage inductance (306)；One end of the resonant capacitance (212)
It is connected to first ideal transformer (203) of two crisscross parallels and the secondary of the secondary ideal transformer (205)
On public output point；The other end of the resonant capacitance (212) is connected to the anode of first diode (213) and load
One end；The other end and the two or two pole of the negative electrode of first diode (213) and the described first parasitic leakage inductance (206)
Pipe (214) connection；The negative electrode of the 3rd diode (313) and the other end of the described second parasitic leakage inductance (306) and described the
Four diodes (314) connect；The other end of second diode (214) and the 4th diode (314) is connected to load
The other end.
2. direct current transducer according to claim 1, it is characterised in that the first switch device (205) and described
Two switching devices (305) are metal-oxide-semiconductor, triode or IGBT are managed.
3. direct current transducer according to claim 2, it is characterised in that the division of the main road and the bypass is can be mutual
Change.
4. direct current transducer according to claim 3, it is characterised in that the described first parasitic leakage inductance (206) and described the
Two parasitic leakage inductances (306) are present as resonant inductance in the DC converting circuit, or are served as with separate inductor.
5. direct current transducer according to claim 4, it is characterised in that the direct current transducer can will be the direct current of 30V defeated
Enter the high pressure that voltage is increased to 480V.
6. direct current transducer according to claim 5, it is characterised in that the direct current transducer is applied to photovoltaic inversion system
System.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510111182.4A CN104682714B (en) | 2015-03-13 | 2015-03-13 | Direct current transducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510111182.4A CN104682714B (en) | 2015-03-13 | 2015-03-13 | Direct current transducer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104682714A CN104682714A (en) | 2015-06-03 |
| CN104682714B true CN104682714B (en) | 2017-04-05 |
Family
ID=53317413
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510111182.4A Active CN104682714B (en) | 2015-03-13 | 2015-03-13 | Direct current transducer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104682714B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113346760A (en) * | 2021-06-29 | 2021-09-03 | 同济大学 | Dynamic construction method for resonance characteristics of high-efficiency power converter |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5008795A (en) * | 1990-03-23 | 1991-04-16 | Unisys Corporation | Switched capacitor interleaved forward power converter |
| US5471376A (en) * | 1993-03-05 | 1995-11-28 | Digital Equipment Corporation | Low-loss active voltage-clamp circuit for single-ended forward PWM converter |
| CN101588134A (en) * | 2009-06-08 | 2009-11-25 | 浙江大学 | Isolation type rectification circuit and use thereof |
| CN101702578A (en) * | 2009-12-07 | 2010-05-05 | 浙江大学 | Forward-flyback isolated type boost inverter realized by coupling inductors and application thereof |
| CN201733225U (en) * | 2009-12-07 | 2011-02-02 | 浙江大学 | Separated boost converter for realizing forward-flyback by coupling inductances |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7535734B2 (en) * | 2006-10-19 | 2009-05-19 | Heng-Yi Li | High power-factor AC/DC converter with parallel power processing |
-
2015
- 2015-03-13 CN CN201510111182.4A patent/CN104682714B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5008795A (en) * | 1990-03-23 | 1991-04-16 | Unisys Corporation | Switched capacitor interleaved forward power converter |
| US5471376A (en) * | 1993-03-05 | 1995-11-28 | Digital Equipment Corporation | Low-loss active voltage-clamp circuit for single-ended forward PWM converter |
| CN101588134A (en) * | 2009-06-08 | 2009-11-25 | 浙江大学 | Isolation type rectification circuit and use thereof |
| CN101702578A (en) * | 2009-12-07 | 2010-05-05 | 浙江大学 | Forward-flyback isolated type boost inverter realized by coupling inductors and application thereof |
| CN201733225U (en) * | 2009-12-07 | 2011-02-02 | 浙江大学 | Separated boost converter for realizing forward-flyback by coupling inductances |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104682714A (en) | 2015-06-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101814856B (en) | Non-isolated grid-connected inverter and switch control time sequence thereof | |
| CN103051233B (en) | Non-isolated single-phase photovoltaic grid-connected inverter and on-off control timing sequence thereof | |
| CN104124874B (en) | Ultrahigh-frequency isolating resonant converter | |
| CN102946199A (en) | Direct current insulation buck converter and matrix voltage detection circuit thereof | |
| CN105932880A (en) | Magnetizing Current Based Control Of Resonant Converters | |
| CN103929064A (en) | Isolated two-way DC/DC converter and control method thereof | |
| CN105245113B (en) | The anti-straight-through Sofe Switch of one kind recommends LLC resonant converter | |
| CN105281361B (en) | A kind of five-level double step-down combining inverter | |
| CN102361408A (en) | Non-isolated photovoltaic grid-connected inverter and switching control time sequence thereof | |
| CN104092382A (en) | Three-input-isolation DC/DC converter | |
| CN103391001A (en) | High-gain DCDC converter for MPPT link of photovoltaic inverter | |
| CN106712523B (en) | A kind of three levels full-bridge converters of boosting and its control method | |
| CN102882410A (en) | Single-phase seven-level inverter | |
| CN102751866A (en) | High-gain DC (Direct Current)-DC boost converter applicable to photovoltaic generation system | |
| CN103887981A (en) | Full-bridge DC-DC converter | |
| CN203617902U (en) | Integrated buck-flyback type high power factor constant current circuit and device | |
| CN103647448A (en) | Integrated step-down-flyback type high power factor constant current circuit and device | |
| CN202940733U (en) | Direct current insulation buck converter and matrix voltage detection circuit thereof | |
| CN102931843A (en) | Soft-switch full-bridge direct-current transformer of self-driven active auxiliary network | |
| CN101860221B (en) | Direct-current booster circuit suitable for micro power inversion | |
| CN1937382A (en) | Zero-voltage switch combined full-bridge three-level direct current converter | |
| CN102291020A (en) | Alternating-current push-pull conversion-single-diode rectification AC-DC (alternating current-to-direct current) converter | |
| CN104682714B (en) | Direct current transducer | |
| CN103944384A (en) | Coupling inductance high-gain active network boost converter | |
| CN204794700U (en) | Boost circuit system and on -vehicle solar airconditioning |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Multi-output DC-DC converter having improved cross modulated performance Effective date of registration: 20190402 Granted publication date: 20170405 Pledgee: Agricultural Bank of China Limited by Share Ltd Jiaxing science and Technology Branch Pledgor: Zhejiang Yuneng Technology Co., Ltd. Registration number: 2019330000091 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| CP03 | Change of name, title or address |
Address after: 3 / F, building 1, No. 1, Asia Pacific Road (Jiaxing Science and technology city), Nanhu District, Jiaxing City, Zhejiang Province Patentee after: Yuneng Technology Co., Ltd Address before: 314050 No. 1 Asia Pacific Road, Nanhu District, Zhejiang, Jiaxing Patentee before: Zhejiang Yuneng Technology Co.,Ltd. |
|
| CP03 | Change of name, title or address | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20211222 Granted publication date: 20170405 Pledgee: Agricultural Bank of China Limited by Share Ltd. Jiaxing science and Technology Branch Pledgor: Zhejiang Yuneng Technology Co.,Ltd. Registration number: 2019330000091 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right |